Create UTC date

- Add tests for date column

ee/app/assets/javascripts/billings/components/subscription_table_row.vue

@@ -33,7 +33,10 @@ export default {
     },
     getDisplayValue(col) {
       if (col.isDate && col.value) {
-        return dateInWords(new Date(col.value));
+        const [year, month, day] = col.value.split('-');
+
+        // create UTC date (prevent date from being converted to local timezone)
+        return dateInWords(new Date(year, month - 1, day));
       }
 
       // let's display '-' instead of 0 for the 'Free' plan

ee/changelogs/unreleased/8946-account-expiration-date-time-discrepancy.yml

+---
+title: Create UTC date in subscription table
+merge_request: 9166
+author:
+type: fixed

ee/spec/javascripts/billings/components/subscription_table_row_spec.js

 import Vue from 'vue';
+import { dateInWords } from '~/lib/utils/datetime_utility';
 import component from 'ee/billings/components/subscription_table_row.vue';
 import mountComponent from 'spec/helpers/vue_mount_component_helper';
 
@@ -76,5 +77,28 @@ describe('Subscription Table Row', () => {
 
       expect(currentCol.querySelector('.btn-help')).not.toBe(null);
     });
+
+    describe('date column', () => {
+      const dateColumn = {
+        id: 'c',
+        label: 'Column C',
+        value: '2018-01-31',
+        isDate: true,
+      };
+
+      beforeEach(() => {
+        props = { header, columns: [dateColumn] };
+        vm = mountComponent(Component, props);
+      });
+
+      it('should render the date in UTC', () => {
+        const currentCol = vm.$el.querySelectorAll('.grid-cell:not(.header-cell)')[0];
+        const d = dateColumn.value.split('-');
+        const outputDate = dateInWords(new Date(d[0], d[1] - 1, d[2]));
+
+        expect(currentCol.querySelector('.property-label').textContent).toContain(dateColumn.label);
+        expect(currentCol.querySelector('.property-value').textContent).toContain(outputDate);
+      });
+    });
   });
 });